Clapboard-machine



2 Sheets-Sheet 1.

A. CUNNINGHAM. Clapboard Machine,

No. 230,110. Pate n'te-d July 20,1880.

W Hessas:

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N,PETERS, FHDTO LITHOGRAPHFJL WASHINGTON. D C.

2 Sheets-Sheqt2.

A; CUNNINGHAM. Clapboard Maqh'ine.

Patented July 20, 1880.

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N. PETERS. PHOTO'LITNOGRAFHER. WASHINGTON. D. C.

UNITED STATES PATENT Fries.

ALBERT CUNNINGHAM, OF MILWAUKEE, WISCONSIN.

CLAPBOARD-MACHINE.

SPECIFICATION formingpart of Letters Patent No. 230,110, dated July 20, 1880.

Application filed November 20, 1879. v

To all whom it may concern:

Be it known that I, ALBERT CUNNINGHAM, of Milwaukee, in the county of Milwaukee, and in the State of Wisconsin, have invented certain new and useful Improvements in Clapboard or Siding Machines; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to devices for dividing logs into sidings or clapboards, and will be hereinafter fully described.

In the drawings, Figure 1 is a plan; Fig. 2, a plan of the holder and carriage. Fig. 3 is a front, and Fig. 4 a rear end View. Fig. 5 is a crosssection of the holder and gage, and Fig. 6 a bottom View of the holder-carriage.

A is the main saw, the arbor of which revolves in bearings A A in a frame, B, and sustains it at an inclination of about forty-five degrees. Just in front of the saw A, I arrange the arbor O of the edging-saws D D in bearings O G at right angles to those of the main saw. The arbor 0 slides loosely in its bearings, has the edging-saws D D secured to its lower end, a pulley at its opposite end, and between the bearings O O a grooved collar, E, into which one end of an adjusting-lever, E, fits loosely.

Just in advance of the ed ging-saws I place a bracket, F, having a groove in its face to accommodate the curved stem g of the gage G, which stem projects down beyond the base of the bracket and rests against a pivoted camstop, h, from which a stud, [0, projects. This cam is rounded on one side, and a spring-stud which projects through the track-base bears against it to prevent it from turning too easily.

A set-screw, i, which has a bearing in the upper end of the bracket and against the under side of the gage, serves as a means for adjusting it to determine the thickness of the siding desired.

An adjustable spreader, K, on the opposite side of the saw A, serves as a support to hold the cant out of contact and keep it from crowding the saw. I also provide a rest, H, for the cant before it reaches the saw.

The cant holder or carriage may be made to move on any suitable track or Way, and its base is provided on its side next to the saws with inclines no, one at each end, for engagement with the stud h of the stop h. It is also provided with brackets J J J which form the bearings for the journals of a slotted tube or holder, L, in which the heartedge of a cant or quarter is clamped by the curved knife-edges j j, one of which, j, is stationary, while the other slides in the tube L and is operated by a screw-shaft, M.

The tube L is revolved in the direction of the saws by means of a spring, a, which is coiled about its journal N between the brackets J J. The upper part of the bearing in bracket J expands from the lower part, forming jaws Z Z, and is locked by a bindingscrew, 6, to clamp the journal and secure the cant-holder in any desired position.

In sawing timber from which the heart has been hollowed out, for the slotted tube I may substitute a solid cylinder or an entire tube, on which the cant might beplaced so thatits hollow would lit over it. In either case I would provide arms 0 0 for the face of the cant opposite the saw to rest upon, and these may carry dogs for seizing it.

Operation The cant having been secured in the holder and the jaws l l unclamped, the cant will be carried by the holder over against the rest Hand in front of the saws. An ad- Vance of the cant will now carry its front end upon the guide G, which has'previously been set at the proper height with relation to the saw A to give the required thickness to the siding desired. The cant then passes onto the edging-saws D D, which groove it, and thence to the main saw A, each cut from which takes off a wedge-shaped strip in cross-section, since the edge of this saw points constantly to the center about which the cant revolves. After the cant has been carried beyond and off of the gage G the incline '0 on the base of the carriage strikes the stud h and revolves the camstop h, which forces the gage up high enough to carry the cant clear of the saw A on its return until it is fully retracted, when an incline, v, on the other end of the base throws the stud around and faces the thin side of the cam-stop to the stem g, which drops and allows the gage to fall into position for the next out; and thus the cant will be sawed into sidl tint ings, the machine automatically adjusting it near its center of revolution, as and for the for each cut. 7 purpose described.

By means of the clamp Z Z the cant-holder 2. In a siding-machine, the combination of 20 may be controlled and the cant held in posithe gage G and the carriage and the described 5 tion for being trimmed, as is sometimes neoes device on the carriage for raising the gage to sary before a perfect siding can be taken 0E. carry the cant free of the saw on its return What I claim as my invention, and desire movement, and to drop it to allow the cant to to secure by Letters Patent, is assume the position proper for a fresh cut as 2 5 1. In a siding-machine, the combination ofv the carriage is advanced, as described, and for IO a carriage, F, provided with mechanism for the purpose set forth.

holding the cant and allowing it-to be revolved In testimony that I claim the foregoing I about a center, and the gage G, constructed to have hereunto set my hand this 7th day of support the cant in opposition to the force by November, 1879.

which it is revolved for determining the thick- ALBERT CUNNINGHAM. 15 ness of the siding desired, the whole being ar- Witnesses:

ranged to permit the saw Ato cut into the cant E. H. BOTTUM,

on a line or lines radiating from a point at or S, S. STOUT. 

